Bumper for a vehicle



FIG. 1 is a left frontal perspective view of a bumper for a vehicle showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a left end view thereof, with the right end view being a mirror image of the left end view. 

The ornamental design for a bumper for a vehicle, as shown and described. 